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Joel Ullom (Fed)

Publications

Gamma and Decay Energy Spectroscopy Measurements of Trinitite

Author(s)
David Mercer, Katrina Koehler, Mark Croce, Andrew Hoover, Philip Hypes, Stosh Kozimor, Veronika Mocko, Paul Saey, Daniel Schmidt, Joel Ullom
We report gamma ray spectroscopy measurements of trinitite samples and analogous samples obtained from detonation sites in Nevada and Semipalatinsk, as well as

Absolute energies and emission line shapes of the x-ray lines of lanthanide metals

Author(s)
Joseph Fowler, Galen O'Neil, Bradley K. Alpert, Douglas Bennett, Edward V. Denison, William Doriese, Gene Hilton, Lawrence T. Hudson, Young I. Joe, Kelsey Morgan, Daniel Schmidt, Daniel Swetz, Csilla I. Szabo-Foster, Joel Ullom
We use an array of transition-edge sensors, cryogenic microcalorimeters with 4 eV energy resolution, to measure the x-ray emission-line profiles of four

Broadband high-energy resolution hard x-ray spectroscopy using transition edge sensors at SPring-8

Author(s)
Shinya Yamada, Yuto Ichinohe, Hideyuki Tatsuno, Ryota Hayakawa, Hirotaka Suda, Takaya Ohashi, Yoshitaka Ishisaki, Tomoya Uruga, Oki Sekizawa, Kiyofumi Nitta, Yoshio Takahashi, Takaaki Itai, Hiroki Suga, Makoto Nagasawa, Masato Tanaka, Minako Kurisu, Tadashi Hashimoto, Douglas Bennett, Edward V. Denison, William Doriese, Malcolm Durkin, Joseph Fowler, Galen O'Neil, Kelsey Morgan, Daniel Schmidt, Daniel Swetz, Joel Ullom, Leila R. Vale, Shinji Okada, Takuma Okumura, Toshiyuki Azuma, Toru Tamagawa, Tadaaki Isobe, Satoshi Kohjiro, Hirofumi Noda, Keigo Tanaka, Akimichi Taguchi, Yuki Imai, Kosuke Sato, Tasuku Hayashi, Teruhiko Kashiwabara, Kohei Sakata
We have succeeded in operating a transition-edge sensor (TES) spectrometer and evaluating its performance at the SPring-8 synchrotron x-ray light source. The

Patents

X-Ray Spectrometer

NIST Inventors
Joel Ullom, Galen O'Neil, Luis Miaja Avila, Kevin L. Silverman, Daniel Swetz, Ralph Jimenez, W.Bertrand (Randy) Doriese, Gene C. Hilton, Carl D. Reintsema, Dan Schmidt and Bradley Alpert
Patent Description Presently, there are no commercial tools for x-ray absorption and emission spectroscopy with picosecond time resolution. Additionally, there are no table-top tools for x-ray emission spectroscopy with picosecond time resolution. Previously, x-ray emission spectroscopy with this
Created October 9, 2019